ClassID:

213523

H01M8/04746 - CPC Classification

Classification description:

Fuel cells; Manufacture thereof; Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids; Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled Pressure; Flow

Sub-classes:
Recent Application in this class:
#1
20260149113
2026-05-28

BATTERY STORAGE CONTAINER AND METHOD OF USE

#2
20260121089
2026-04-30

POWER DISTRIBUTION USING ELECTROLYTE FLUID

#3
20260106195
2026-04-16

REGENERATION METHODS AND FUEL CELL SYSTEM

#4
20250357514
2025-11-20

UNIFORM DISTRIBUTION OF SHUNT CURRENTS IN FLOW BATTERY

#5
20250266473
2025-08-21

FUEL TREATMENT DEVICE

#6
20250260027
2025-08-14

CROSS-CELL LEAK DETECTION AND SAMPLE CONDITIONING SYSTEM

#7
20250253369
2025-08-07

ANODE SUB-SYSTEM LAYOUT FOR SINGLE VALVE FREEZE PURGE CAPABILITY

#8
20250229910
2025-07-17

INERTING SYSTEM FOR AN AIRCRAFT

#9
20250070323
2025-02-27

METAL-AIR BATTERY SYSTEM

#10
20250070208
2025-02-27

STEADY AND TRANSIENT STATE OPERATION OF FUEL CELLS

#11
20250030022
2025-01-23

ELASTICALLY DEFORMABLE FLOW FIELD COMPONENT

#12
20240396064
2024-11-28

ELECTROLYTE TANK VOLUME REBALANCING

#13
20240377035
2024-11-14

GAS DETECTION SYSTEM AND GAS DETECTION METHOD

#14
20240332584
2024-10-03

REDOX MICROFLUIDIC ENERGY STORAGE SYSTEM AND METHOD

#15
20240313243
2024-09-19

ELECTROCHEMICAL CELL, CURRENT COLLECTOR, AND CELL STACK

#16
20240313242
2024-09-19

FUEL CELL SYSTEM CAPABLE OF ADJUSTING BYPASS FLOW RATE

#17
20240234760
2024-07-11

GRAVITY DRAINAGE SUBSYSTEM FOR REDOX FLOW BATTERY SYSTEM

#18
20240186550
2024-06-06

FUEL CELL CONTROL PROGRAM AND FUEL CELL SYSTEM

#19
20240170699
2024-05-23

Antioxidant Liquid for Fuel Cell and Method of Charging Same

#20
20240145742
2024-05-02

Fuel cell system and method for discharging water from a fuel cell system

#21
20240136551
2024-04-25

GRAVITY DRAINAGE SUBSYSTEM FOR REDOX FLOW BATTERY SYSTEM

#22
20240120513
2024-04-11

FREEZE PROTECTION METHOD, FUEL CELL SYSTEM FOR CARRYING OUT THE SAME AND VEHICLE HAVING SUCH A FUEL CELL SYSTEM

#23
20240088421
2024-03-14

FLOW BATTERY SYSTEMS AND METHODS

#24
20240055642
2024-02-15

NEGATIVE ELECTROLYTE MANAGEMENT SYSTEM

#25
20240030476
2024-01-25

STACK DRAINAGE FOR REDOX FLOW BATTERY

#26
20240030468
2024-01-25

METHOD FOR OPERATING IN HOT STAND-BY MODE A SOFC FUEL CELL OR SOEC REACTOR

#27
20240006638
2024-01-04

FUEL CELL SYSTEM

#28
20230261218
2023-08-17

CATHODE CIRCULATION SYSTEM OF FUEL CELL AND ITS CONTROL METHOD

#29
20230261217
2023-08-17

ANODE RECOVERY SYSTEM OF FUEL CELL

#30
20230253605
2023-08-10

FUEL CELL SYSTEM

#31
20230253586
2023-08-10

FUEL CELL SYSTEM

#32
20230246208
2023-08-03

Fuel cell system

#33
20230207844
2023-06-29

VANADIUM BATTERY SOC BALANCE SYSTEM STRUCTURE AND CONTROL METHOD THEREOF

#34
20230198053
2023-06-22

Device for managing the state of health of an electrolyte in a redox flow battery system

#35
20230170504
2023-06-01

FUEL CELL SYSTEM HAVING ACTIVE HOUSING PURGING

#36
20230127600
2023-04-27

Enclosure containing an inerting gas and comprising a liquid discharging system, aircraft having such an enclosure

#37
20230102812
2023-03-30

BIOGAS-UTILIZING METHANATION SYSTEM

#38
20230092461
2023-03-23

Method for controlling fuel cell device

#39
20230090097
2023-03-23

METHOD FOR REFRESHING ASYMMETRIC MIXED SOLUTION FOR REDOX FLOW BATTERIES

#40
20230072808
2023-03-09

Method of optimizing surface of carbon electrode for flow battery

#41
20230046641
2023-02-16

FUEL CELL SYSTEM

#42
20230043468
2023-02-09

Method for controlling fuel cell

#43
20220416273
2022-12-29

Fuel cell system and method for starting same

#44
20220393200
2022-12-08

Fuel cell system

#45
20220223887
2022-07-14

PRESSURIZED AIR SUPPLY SYSTEM, FUEL CELL SYSTEM COMPRISING THE PRESSURIZED AIR SUPPLY SYSTEM, AND STARTING METHOD OF THE PRESSURIZED AIR SUPPLY SYSTEM

#46
20220181651
2022-06-09

Electrochemical module, electrochemical device, and energy system

#47
20220131214
2022-04-28

HIGH ENERGY DENSITY FUEL CELL APPARATUS AND SYSTEM WITH A HYDRIDE-BASED HYDROGEN GENERATOR AS A SCALABLE POWER SOLUTION CONCEPT

#48
20220127738
2022-04-28

ELECTROLYTE MANUFACTURING DEVICE AND METHOD FOR MANUFACTURING ELECTROLYTE

#49
20220115677
2022-04-14

FUEL CELL SYSTEM AND CONTROL METHOD OF FUEL CELL SYSTEM

#50
20220109171
2022-04-07

Fuel cell system

#51
20220013799
2022-01-13

Cell, cell stack device, module, and module housing device

#52
20210399321
2021-12-23

Fuel Cell System and Method of Reprocessing Off-Gas

#53
20210351428
2021-11-11

Modular and scalable flow battery system

#54
20210344023
2021-11-04

Method for controlling a fuel cell

#55
20210313602
2021-10-07

Fuel cell system

#56
20210231228
2021-07-29

Magnetic check valve with applications in fuel cell systems

#57
20210036351
2021-02-04

Carbon dioxide production system

#58
20210028474
2021-01-28

Apparatus and method for controlling emergency driving for fuel cell vehicle

#59
20210013528
2021-01-14

Fuel cell

#60
20200407059
2020-12-31

System and method for providing service on golf course using fuel cell drone

#61
20200388867
2020-12-10

Redox flow battery having electrolyte flow path independently provided therein

#62
20200350606
2020-11-05

Electrochemical apparatus and hydrogen system

#63
20200313206
2020-10-01

Method for operating solid oxide fuel cell

#64
20200280086
2020-09-03

Separator for fuel cell or current collecting member for fuel cell, and solid polymer electrolyte fuel cell

#65
20200194811
2020-06-18

Assembled portion of a solid oxide fuel cell and methods for inspecting the same

#66
20200161671
2020-05-21

FUEL CELL SYSTEM CONTAINING HUMIDITY SENSOR AND METHOD OF OPERATING THEREOF

#67
20200060492
2020-02-27

BATTERY

#68
20200044262
2020-02-06

Leaks containment embodiment for electrochemical stack

#69
20200014017
2020-01-09

Electrode sheet manufacturing method and electrode sheet manufacturing apparatus

#70
20190393515
2019-12-26

Fuel cells, half plates, and methods for designing the same

#71
20190363379
2019-11-28

Air supply control method and control system for fuel cell

#72
20190348689
2019-11-14

Separator for fuel cell

#73
20190312297
2019-10-10

METHOD FOR OPERATING REDOX FLOW BATTERY

#74
20190280324
2019-09-12

Electrolyte for flow battery and flow battery system

#75
20190221870
2019-07-18

ELECTROLYTE FLOW BATTERY SYSTEM AND ELECTROLYTE

#76
20190181474
2019-06-13

FUEL CELL APPARATUS

#77
20190162790
2019-05-30

Fuel cell stack cell voltage sensor diagnostic

#78
20190140298
2019-05-09

High efficiency fuel cell system with hydrogen and syngas export

#79
20190140293
2019-05-09

Fuel cell module arrangement with leak recovery and methods of use

#80
20190140288
2019-05-09

Fuel cell system containing humidity sensor and method of operating thereof

#81
20190115607
2019-04-18

Low flow control method and system for fuel cell

#82
20190081337
2019-03-14

Vehicle fuel cell purging system

#83
20190074528
2019-03-07

FUEL CELL VEHICLE

#84
20190056381
2019-02-21

Self-regulating alcohol breathalyzer

#85
20190036145
2019-01-31

FUEL CELL

#86
20190036133
2019-01-31

Method for determining a content of a gas component in a gas mixture conveyed in a recirculating manner via a fuel cell

#87
20180366753
2018-12-20

Fuel cell system and injection control method

#88
20180323461
2018-11-08

Separator for fuel cell or current collecting member for fuel cell, and manufacturing method thereof

#89
20180309143
2018-10-25

Fuel cell system

#90
20180301724
2018-10-18

Fuel cell system and control method therefor

#91
20180251409
2018-09-06

High efficiency fuel cell

#92
20180198151
2018-07-12

Method for operating of a regenerative bipolar membrane fuel cell, and regenerative bipolar membrane fuel cell there for

#93
20180196108
2018-07-12

Method and device for observing a state of a fuel-cell electrochemical system

#94
20180175438
2018-06-21

Large scale flow battery system

#95
20180175429
2018-06-21

Systems and methods for electrolyte storage and detecting faults in flow batteries

#96
20180151903
2018-05-31

Fuel cell unit

#97
20180151899
2018-05-31

Flow batteries having adjustable circulation rate capabilities and methods associated therewith

#98
20180072669
2018-03-15

Materials for use in an aqueous organic redox flow battery

#99
20180026287
2018-01-25

Fuel cell system

#100
20180026285
2018-01-25

Fuel cell system

#101
20180006317
2018-01-04

FUEL CELL SYSTEM AND METHOD FOR OPERATING THE SAME

#102
20170365868
2017-12-21

Fuel cell system and method of controlling the same

#103
20170338503
2017-11-23

Method for controlling a fuel cell and associated fuel cell system

#104
20170301935
2017-10-19

APPARATUS AND METHOD FOR CONTROLLING FUEL CELL STACK

#105
20170267301
2017-09-21

Fuel cell vehicle and method of mounting power module on fuel cell vehicle

#106
20170237096
2017-08-17

Control of an electrochemical device with integrated diagnostics, prognostics and lifetime management

#107
20170229721
2017-08-10

Fuel cell system and fuel cell system control method

#108
20170077534
2017-03-16

Fuel cell regulation using loss recovery systems

#109
20170012314
2017-01-12

Microbrial fuel cells

#110
20170012307
2017-01-12

REDOX FLOW BATTERY SYSTEM AND METHOD FOR OPERATING REDOX FLOW BATTERY

#111
20170005349
2017-01-05

Fuel cell cartridge

#112
20160248108
2016-08-25

Control arrangement and method in fuel cell system

#113
20160181636
2016-06-23

OPEN-LOOP SYSTEM AND METHOD FOR FUEL CELL STACK START-UP WITH LOW-VOLTAGE SOURCE

#114
20160172693
2016-06-16

Perceiving method and system of stack state for fuel cell system

#115
20160137096
2016-05-19

Vehicle including fuel cell system

#116
20160133975
2016-05-12

Fuel cell system

#117
20160126570
2016-05-05

Combined power generation system and unit, method, and program for controlling the same

#118
20160107952
2016-04-21

High efficiency fuel cell

#119
20160093904
2016-03-31

SECONDARY BATTERY RECUPERATOR SYSTEM

#120
20160079620
2016-03-17

HYDROGEN PURGING DEVICE AND METHOD FOR FUEL CELL SYSTEM

#121
20160043417
2016-02-11

Method for creating an oxygen depleted gas in a fuel cell system

#122
20160028136
2016-01-28

Power system for a telecommunications network

#123
20150357662
2015-12-10

CONTROL ARRANGEMENT AND METHOD IN FUEL CELL SYSTEM

#124
20150311551
2015-10-29

FUEL CELL SYSTEM

#125
20150295258
2015-10-15

Ascertaining fuel cell inlet humidity by means of pressure sensors, and a mass flow rate-dependent control of the humidifier bypass

#126
20150226806
2015-08-13

METHOD AND SYSTEM FOR EVALUATING REDOX FLOW BATTERY

#127
20150194683
2015-07-09

Fuel cell system including a fuel cell assembly and centrifugal blower system

#128
20150192138
2015-07-09

Centrifugal blower system and fuel cell incorporating same

#129
20150192134
2015-07-09

Cetrifugal blower system and fuel cell incorporating same

#130
20150125764
2015-05-07

Flow Battery Using Non-Newtonian Fluids

#131
20150086896
2015-03-26

MONITORING ELECTROLYTE CONCENTRATIONS IN REDOX FLOW BATTERY SYSTEMS

#132
20150056532
2015-02-26

Fuel cell apparatus and method of operation

#133
20150050571
2015-02-19

Multi-stack electrochemical cell system and method of use

#134
20150037701
2015-02-05

Fuel cell system

#135
20150030953
2015-01-29

Fuel cell system

#136
20150030952
2015-01-29

Dynamic decompression control for high pressure seals

#137
20150010838
2015-01-08

Fuel cell system and method of operating the same

#138
20140356751
2014-12-04

Method sensor and regulation apparatus for regulating gas operated energy converter plants

#139
20140342260
2014-11-20

Fuel cell vehicle air-conditioning apparatus and control method thereof

#140
20140248546
2014-09-04

HYDROGEN GENERATOR FOR A FUEL CELL

#141
20140154603
2014-06-05

Fuel cell apparatus and fuel cell system

#142
20130295477
2013-11-07

Fuel cell system including a fuel cell and a controller for controlling water vapor amount or average flow rate of a fuel gas

#143
20130260281
2013-10-03

Fuel cell and fuel cell stack

#144
20130202976
2013-08-08

Fuel cell system and operating method thereof

#145
20130122386
2013-05-16

Method to generate H2-exhaust sensor test pulse using electrically controlled pressure regulator

#146
20130084512
2013-04-04

FUEL BATTERY SYSTEM

#147
20130045429
2013-02-21

Solid Oxide Fuel Cell System

#148
20130034795
2013-02-07

Fuel cell system having fuel cell box and ventilation device

#149
20120328969
2012-12-27

Fuel cell system with centrifugal blower system for providing a flow of gaseous medium thereto

#150
20120270128
2012-10-25

Fuel cell power generation system

#151
20120251910
2012-10-04

Method for controlling fuel cell system with in-stop-mode power generating process and startup process

#152
20120105206
2012-05-03

Fuel-cell-based cogeneration system with radio frequency identification sensors

#153
20120100445
2012-04-26

Fuel cell system and method of operating fuel cell system

#154
20120082913
2012-04-05

System and method for determining a state of operational readiness of a fuel cell backup system of a nuclear reactor system

#155
20120082912
2012-04-05

System and method for maintaining and establishing operational readiness in a fuel cell backup system of a nuclear reactor system

#156
20120078437
2012-03-29

METHOD AND REGULATING APPARATUS FOR REGULATING A TEMPERATURE OF AN ENERGY ACCUMULATOR UNIT

#157
20120052408
2012-03-01

Membrane permeation adjustment in PEM fuel cell

#158
20110293972
2011-12-01

Fuel cell system

#159
20110256461
2011-10-20

FUEL CELL SYSTEM, ESTIMATION DEVICE OF AMOUNT OF ANODE GAS TO BE GENERATED AND ESTIMATION METHOD OF AMOUNT OF ANODE GAS TO BE GENERATED

#160
20110183238
2011-07-28

Fuel cell

#161
20110171550
2011-07-14

METHOD FOR CONTROLLING FUEL CELL SYSTEM AND FUEL CELL SYSTEM USING THE SAME

#162
20110143241
2011-06-16

FUEL CELL OPERATIONAL METHODS FOR OXYGEN DEPLETION AT SHUTDOWN

#163
20110059382
2011-03-10

Anode loop pressure control in PEM fuel cell system

#164
20110045369
2011-02-24

FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM

#165
20110027629
2011-02-03

Instrumented fluid-surfaced electrode

#166
20100261076
2010-10-14

Fuel cartridge, fuel cell, and power generation method

#167
20100239936
2010-09-23

FUEL CELL SYSTEM AND METHOD OF OPERATING THE SAME

#168
20100190073
2010-07-29

Bleed trigger monitor used in fuel cell system

#169
20100167133
2010-07-01

SOLID OXIDE FUEL CELL SYSTEM

#170
20100167098
2010-07-01

FUEL CELL SYSTEM AND TRANSPORTATION EQUIPMENT INCLUDING THE SAME

#171
20100136440
2010-06-03

FUEL CELL APPARATUS AND FUEL CELL SYSTEM

#172
20100068580
2010-03-18

Fuel cell system

#173
20100028739
2010-02-04

Fuel cell

#174
20090325012
2009-12-31

ALKALINE FUEL CELL SYSTEM

#175
20090291339
2009-11-26

Method of operating a fuel cell system

#176
20090269628
2009-10-29

Fuel cell system, estimation device of amount of anode gas to be generated and estimation method of amount of anode gas to be generated

#177
20090208785
2009-08-20

SOFC electrochemical anode tail gas oxidizer

#178
20090186258
2009-07-23

ION CONDUCTOR AND FUEL CELL

#179
20090155647
2009-06-18

SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER

#180
20090155644
2009-06-18

SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER

#181
20090155640
2009-06-18

SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER

#182
20090098426
2009-04-16

Fuel cell operation system and valve open amount calculation method in the fuel cell operation system

#183
20090087700
2009-04-02

Operation of a Fuel Cell

#184
20090081502
2009-03-26

Open-loop system and method for fuel cell stack start-up with low-voltage source

#185
20080233437
2008-09-25

Fuel Cell System and Control Method Therefor

#186
20080216773
2008-09-11

Home appliance system using high temperature fuel cell system and method of supplying super heated steam

#187
20080197857
2008-08-21

Multi-MEA test station and multi-MEA test method using the same

#188
20080187791
2008-08-07

Fuel cell system and scavenging method therefor

#189
20080160361
2008-07-03

Fuel cell system and operation method thereof

#190
20080156549
2008-07-03

Ventilation for fuel cell power unit

#191
20080094868
2008-04-24

Power system for a telecommunications network

#192
20080075985
2008-03-27

Adaptive purge control to prevent electrode redox cycles in fuel cell systems

#193
20080063905
2008-03-13

Fuel cell having actuator controlling unit and method of operating the same

#194
20080038602
2008-02-14

Method for mitigating cell degradation due to startup and shutdown via cathode re-circulation combined with electrical shorting of stack

#195
20070275287
2007-11-29

Active test fuel cell for characterizing and qualifying cell-internal fuel cell components

#196
20070264537
2007-11-15

FUEL CELL DEVICE WITH REMOTE CONTROL INTERFACE

#197
20070254193
2007-11-01

Fuel cell power generation system

#198
20070248856
2007-10-25

Fuel cell system and operation method thereof

#199
20070116992
2007-05-24

Anode loop pressure control in PEM fuel cell system

#200
20070099040
2007-05-03

Fuel cell system, method of starting fuel cell system

#201
20060169024
2006-08-03

Gas sensor and fuel cell system and automobile employing the same

#202
20060093878
2006-05-04

Fuel cell test station gas-purge system and method

#203
20060088742
2006-04-27

Fuel cell system for scavenging signal pressure line for regulator

#204
20060068240
2006-03-30

Fuel cell system

#205
20050129990
2005-06-16

Fuel cell system

#206
15443668
2023-01-24

Systems and methods for passively controlling pressure within a cryogenic storage tank